yes i am using the engine and carbs, plus all the electronics from my old bike.got a best pass of 9.33 at 141 with old bike.trying to not change anything other then chassis and see what i can get out of this new setup, then i will install bigger carbs and bore the motor 2mm and bump compression to 13:1 then there is always a little blue bottle if i can not get to my goal of 8.90, well 8.70 on a good day so on those not so good days it will run 8.90